Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001477932-21-003394-index-headers.html | 2021-05-18 16:10:51 | |
| 0001477932-21-003394-index.html | 2021-05-18 16:10:51 | |
| 0001477932-21-003394.txt | 2021-05-18 16:10:51 | |
 0001477932-21-003394-xbrl.zip | 47645 | 2021-05-18 16:10:51 |
| btb-20210404.xml | 181663 | 2021-05-18 16:10:51 |
| btb-20210404.xsd | 21510 | 2021-05-18 16:10:51 |
| btb-20210404_cal.xml | 31559 | 2021-05-18 16:10:51 |
| btb-20210404_def.xml | 34356 | 2021-05-18 16:10:51 |
| btb-20210404_lab.xml | 134775 | 2021-05-18 16:10:51 |
| btb-20210404_pre.xml | 102665 | 2021-05-18 16:10:51 |
| btbd_10q.htm | 295812 | 2021-05-18 16:10:51 |
| btbd_ex311.htm | 9381 | 2021-05-18 16:10:51 |
| btbd_ex312.htm | 9259 | 2021-05-18 16:10:51 |
| btbd_ex321.htm | 3257 | 2021-05-18 16:10:51 |
| btbd_ex322.htm | 3287 | 2021-05-18 16:10:51 |
 disc_8kimg1.jpg | 6203 | 2021-05-18 16:10:51 |
| FilingSummary.xml | 13165 | 2021-05-18 16:10:51 |
| Financial_Report.xlsx | 34696 | 2021-05-18 16:10:51 |
| R1.htm | 34543 | 2021-05-18 16:10:51 |
| R10.htm | 22007 | 2021-05-18 16:10:51 |
| R11.htm | 6403 | 2021-05-18 16:10:51 |
| R12.htm | 4757 | 2021-05-18 16:10:51 |
| R13.htm | 52602 | 2021-05-18 16:10:51 |
| R14.htm | 11732 | 2021-05-18 16:10:51 |
| R15.htm | 11383 | 2021-05-18 16:10:51 |
| R16.htm | 22114 | 2021-05-18 16:10:51 |
| R17.htm | 22110 | 2021-05-18 16:10:51 |
| R18.htm | 18448 | 2021-05-18 16:10:51 |
| R19.htm | 4867 | 2021-05-18 16:10:51 |
| R2.htm | 63255 | 2021-05-18 16:10:51 |
| R20.htm | 19496 | 2021-05-18 16:10:51 |
| R21.htm | 22287 | 2021-05-18 16:10:51 |
| R22.htm | 18014 | 2021-05-18 16:10:51 |
| R3.htm | 14505 | 2021-05-18 16:10:51 |
| R4.htm | 39538 | 2021-05-18 16:10:51 |
| R5.htm | 13864 | 2021-05-18 16:10:51 |
| R6.htm | 55966 | 2021-05-18 16:10:51 |
| R7.htm | 21194 | 2021-05-18 16:10:51 |
| R8.htm | 12195 | 2021-05-18 16:10:51 |
| R9.htm | 11982 | 2021-05-18 16:10:51 |
| report.css | 2767 | 2021-05-18 16:10:51 |
| Show.js | 1085 | 2021-05-18 16:10:51 |